The common characteristics of mica group minerals are: layered silicate minerals, monoclinic crystal system, a few trigonal crystal system, the crystals are pseudo-hexagonal columnar, plate and sheet; The aggregate is scaly and foliaceous. It has a set of extremely complete cleavage, along which it is easy to peel into sheets. Therefore, the shape of mica is usually regarded as sheet.

Conclusion

X represents large interlayer cations, such as K+, Na+, Ca2+, Ba2+, Rb+, Cs+, etc. Y represents octahedral cations, such as Al3+, Fe2+, Mg2+, Cr3+, Ti4+, Fe3+, etc. Z is mainly Si4+ and Al3+; The ideal ratio of the additional anion (OH)- to (O)2- is 2:10, and (OH)- can be replaced by F- and Cl-. Most mica contain 4% to 5% water. Therefore, although they may be called mica, the chemical composition of different mica may be very different, for the purpose of research, we collectively refer to the minerals with this type of characteristics as mica group minerals.  

For example, the safe operation of high-speed rail cannot be separated from the escort of mica products.

Mica, a group of silicate minerals composed of varying amounts of potassium, aluminum, magnesium, iron, and water, is renowned for its unique physical and chemical properties. Its transparency, stable structure, and insulating abilities make it a highly sought-after raw material in various industries, including cosmetics, electronics, and construction. In this article, we delve into the significance of mica, its applications, sources, and the challenges it faces in the modern market.

Synthetic 120 mesh :large particle size, with pearl shining effect.

Mica is a very common rock-forming mineral, widely distributed in crystalline rocks. Its general chemical formula can be expressed as: